Analysis of reflectivity measurement by cavity ring-down spectroscopy

gao li-feng; xiong sheng-ming; li bin-cheng; zhang yun-dong; cai bang-wei; 

Volume 17 Issue 03

Mar. 2005

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Article Navigation > High Power Laser and Particle Beams > 2005 > 17(03): 0-

yan ning, zhang wei, chang jiafeng, et al. Propagation of Blob in boundary of HT-7 tokamak[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

gao li-feng, xiong sheng-ming, li bin-cheng, et al. Analysis of reflectivity measurement by cavity ring-down spectroscopy[J]. High Power Laser and Particle Beams, 2005, 17.

yan ning, zhang wei, chang jiafeng, et al. Propagation of Blob in boundary of HT-7 tokamak[J]. High Power Laser and Particle Beams, 2011, 23.

Citation:

gao li-feng, xiong sheng-ming, li bin-cheng, et al. Analysis of reflectivity measurement by cavity ring-down spectroscopy[J]. High Power Laser and Particle Beams, 2005, 17.

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Analysis of reflectivity measurement by cavity ring-down spectroscopy

1.
Institute of Optics and Electronics,Chinese Academy of Sciences,P.O.Box 350,Chengdu 610209,China;
2.
Graduate School of the Chinese Academy of Sciences,Beijing 100039,China;
3.
Department of Opto-electronics,Sichuan University,Chengdu 610064,Chian

Publish Date: 2005-03-15

Abstract

Abstract

This paper presents the experimental method to measure the high reflectivity of optical mirror by cavity ring-down spectroscopy. The experimental system uses a straight cavity composed of a pair of cavity mirrors with same reflectivity or a folded cavity which is formed from the straight cavity to be folded at 22.5° angle, a reflector is laid at folded point.The reflectivity of the cavity mirrors is measured to be（99.925±0.001）% and the reflector to be (99.992±0.003)％．The metrical precision achieves 10－5.The low loss and high reflectivity mirrors can be measured accurately by this setup．
- cavity ring-down spectroscope (crds),
- reflectivity,
- ring-down time,
- straight cavity,
- folded cavity

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